luotuo 2019-12-25
实验环境:
实验目的:
实现存储内容的主从备份
1、挂载软件包
#挂载软件包 mount.cifs //192.168.100.3/lzp /mnt #创建目录 mkdir /opt/magent #解压必要安装包 cd /mnt/mem tar zxvf magent-0.5.tar.gz -C /opt/magent/ tar zxvf libevent-2.1.8-stable.tar.gz -C /opt tar zxvf memcached-1.5.6.tar.gz -C /opt #安装必要组件 yum install gcc gcc-c++ make -y
2、对组件进行编译安装
#编译安装libevent cd /opt/libevent-2.1.8-stable/ ./configure --prefix=/usr make && make install #编译安装memcached cd /opt/memcached-1.5.6/ ./configure --with-libevent=/usr make && make install #编译安装magent cd /opt/magent/ #修改ketama.h配置文件 vim ketama.h #ifndef SSIZE_MAX #define SSIZE_MAX 32767 #将#endif移动到第三行,删除掉末尾的 #endif vim Makefile #第一行末尾添加-lm LIBS = -levent-lm #编译 make
#编译好的magent文件
3、将编译好的magent文件复制到/usr/bin目录下,并推送给从服务器
#安装openssh推送软件 yum install openssh-clients -y #将编译好的magent文件复制到/usr/bin目录下 cp magent /usr/bin #推送magent文件 scp magent :/usr/bin The authenticity of host ‘192.168.45.131 (192.168.45.131)‘ can‘t be established. ECDSA key fingerprint is SHA256:bw2256OHr5apf7CliZv/fAOyVNVsMmRn+lZ5efeQgTg. ECDSA key fingerprint is MD5:6f:f6:70:4f:46:64:ec:17:a7:ae:c0:15:1c:8b:55:1c. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added ‘192.168.45.131‘ (ECDSA) to the list of known hosts. ‘s password: magent 100% 112KB 5.8MB/s 00:00
4、关闭防火墙和安全功能
systemctl stop firewalld.service setenforce 0
5、安装keepalived,并进行修改
#安装keepalived yum install keepalived -y #修改配置文件 vim /etc/keepalived/keepalived.conf ! Configuration File for keepalived #写入下列内容 vrrp_script magent { script "/opt/shell/magent.sh" interval 2 } global_defs { notification_email { } notification_email_from smtp_server 192.168.200.1 smtp_connect_timeout 30 #修改route-id router_id MAGENT_HA } vrrp_instance VI_1 { state MASTER #修改网卡端口 interface ens33 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } #修改,调用上边函数 track_script { magent } virtual_ipaddress { #设置虚拟指向地址 192.168.45.188 } }
6、创建magent脚本
mkdir /opt/shell cd /opt/shell/ vim magent.sh #!/bin/bash K=`ps -ef | grep keepalived | grep -v grep | wc -l` if [ $K -gt 0 ];then magent -u root -n 51200 -l 192.168.45.188 -p 12000 -s 192.168.45.132: 11211 -b 192.168.45.131:11211 else pkill -9 magent fi #给于运行权限 chmod +x magent.sh
7、启动服务,并查看
#启动keepalived systemctl start keepalived.service #查看迁移地址 ip addr #启动memcached memcached -m 512k -u root -d -l 192.168.45.132 -p 11211
安装telent进行测试
yum install telnet -y
1、挂载软件包,并关闭防火墙和安全功能
mount.cifs //192.168.100.3/lzp /mnt #关闭防火墙和安全功能 systemctl stop firewalld.service setenforce 0
2、解压安装包,并进行编译
#解压安装包 cd /mnt/mem tar zxvf libevent-2.1.8-stable.tar.gz -C /opt tar zxvf memcached-1.5.6.tar.gz -C /opt #安装必要组件包 yum install gcc gcc-c++ make -y #编译安装libevent cd /opt/libevent-2.1.8-stable/ ./configure --prefix=/usr make && make install #编译安装memcached cd /opt/memcached-1.5.6/ ./configure --with-libevent=/usr make && make install
3、安装keepalived
#安装keepalived yum install keepalived -y #修改keepalived文件 cd /etc/keepalived/ mv keepalived.conf keepalived.conf.bk vim keepalived.conf ! Configuration File for keepalived vrrp_script magent { script "/opt/shell/magent.sh" interval 2 } global_defs { notification_email { } notification_email_from smtp_server 192.168.200.1 smtp_connect_timeout 30 #修改router_id router_id MAGENT_HB } vrrp_instance VI_1 { state BACKUP #修改网络接口 interface ens33 #修改virtual_router_id virtual_router_id 52 #修改优先级 priority 90 advert_int 1 authentication { auth_type PASS auth_pass 1111 } track_script { magent } virtual_ipaddress { #修改地址 192.168.45.188 } }
4、创建magent脚本
mkdir /opt/shell cd /opt/shell/ vim magent.sh #!/bin/bash K=`ip addr | grep 192.168.45.188 | grep -v grep | wc -l` if [ $K -gt 0 ];then magent -u root -n 51200 -l 192.168.45.188 -p 12000 -s 192.168.45.132: 11211 -b 192.168.45.131:11211 else pkill -9 magent fi chmod +x magent.sh
4、启动服务
#启动keepalived systemctl start keepalived.service #启动memcached memcached -m 512k -u root -d -l 192.168.45.131 -p 11211
安装telent进行测试
yum install telnet -y
#关闭防火墙和安全功能 systemctl stop firewalld.service setenforce 0 #安装telnet yum install telnet -y #在telnet中写入文件 [ ~]# telnet 192.168.45.188 12000 Trying 192.168.45.188... Connected to 192.168.45.188. Escape character is ‘^]‘. add username 0 0 7 1234567 STORED
在从服务器上查看
在主服务器上查看